The tune was an old anti-apartheid struggle song, “Awulethu Umshini Wami” – “Bring Me My Machine Gun” – and it was being led by the man who had made it famous again: the country’s president, Jacob Zuma. As Mr. Zuma’s deep, gleeful voice belted across the room, the moment seemed to encapsulate the strange turning point at which his party, the African National Congress, suddenly found itself. Recommended: Remembering Nelson Mandela: How much do you know about his legacy? read more